Are you looking to import OBJ with MTL files in 3ds Max for your 3D modeling projects? Here's a step-by-step guide to help you do just that.

1. First, make sure you have both the OBJ and MTL files ready. These files contain the 3D model and its material information, respectively.

2. Open 3ds Max and go to the File menu. Click on Import and select the OBJ file from your computer. This will bring in the 3D model into the scene.

3. After importing the OBJ file, go to the Material Editor in 3ds Max. Click on the 'Get Material' button and select 'Multi/Sub-Object'. This will allow you to assign multiple materials to different parts of the 3D model.

4. In the Material Editor, click on the 'Standard' button to create a new material. Then, click on the 'Maps' tab and select the 'Diffuse Color' map. Here, you can load the texture file associated with the material.

5. Now, go back to the Material Editor and assign the newly created material to the respective parts of the 3D model by dragging and dropping it onto the objects.

6. Next, go to the Rendering menu and select the Render Setup option. Here, you can adjust the rendering settings and make sure that the materials are applied correctly to the 3D model.

7. Finally, you can render the scene to see the 3D model with the imported materials from the MTL file.

By following these steps, you can successfully import OBJ with MTL files in 3ds Max and enhance your 3D modeling projects with realistic materials. Experiment with different materials, textures, and lighting to create compelling visualizations that bring your designs to life!